1/**********************************************************
2 * Copyright 2008-2012 VMware, Inc.  All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26#include "util/u_debug.h"
27
28#include "svga_resource.h"
29#include "svga_resource_buffer.h"
30#include "svga_resource_texture.h"
31#include "svga_context.h"
32#include "svga_screen.h"
33#include "svga_format.h"
34
35
36/**
37 * This is the primary driver entrypoint for allocating graphics memory
38 * (vertex/index/constant buffers, textures, etc)
39 */
40static struct pipe_resource *
41svga_resource_create(struct pipe_screen *screen,
42                     const struct pipe_resource *template)
43{
44   struct pipe_resource *r;
45
46   if (template->target == PIPE_BUFFER)
47      r = svga_buffer_create(screen, template);
48   else
49      r = svga_texture_create(screen, template);
50
51   if (!r) {
52      struct svga_screen *svgascreen = svga_screen(screen);
53      svgascreen->hud.num_failed_allocations++;
54   }
55
56   return r;
57}
58
59
60static struct pipe_resource *
61svga_resource_from_handle(struct pipe_screen * screen,
62                          const struct pipe_resource *template,
63                          struct winsys_handle *whandle,
64                          unsigned usage)
65{
66   if (template->target == PIPE_BUFFER)
67      return NULL;
68   else
69      return svga_texture_from_handle(screen, template, whandle);
70}
71
72
73/**
74 * Check if a resource (texture, buffer) of the given size
75 * and format can be created.
76 * \Return TRUE if OK, FALSE if too large.
77 */
78static bool
79svga_can_create_resource(struct pipe_screen *screen,
80                         const struct pipe_resource *res)
81{
82   struct svga_screen *svgascreen = svga_screen(screen);
83   struct svga_winsys_screen *sws = svgascreen->sws;
84   SVGA3dSurfaceFormat format;
85   SVGA3dSize base_level_size;
86   uint32 numMipLevels;
87   uint32 arraySize;
88   uint32 numSamples;
89
90   if (res->target == PIPE_BUFFER) {
91      format = SVGA3D_BUFFER;
92      base_level_size.width = res->width0;
93      base_level_size.height = 1;
94      base_level_size.depth = 1;
95      numMipLevels = 1;
96      arraySize = 1;
97      numSamples = 0;
98
99   } else {
100      if (res->target == PIPE_TEXTURE_CUBE)
101         assert(res->array_size == 6);
102
103      format = svga_translate_format(svgascreen, res->format, res->bind);
104      if (format == SVGA3D_FORMAT_INVALID)
105         return false;
106
107      base_level_size.width = res->width0;
108      base_level_size.height = res->height0;
109      base_level_size.depth = res->depth0;
110      numMipLevels = res->last_level + 1;
111      arraySize = res->array_size;
112      numSamples = res->nr_samples;
113   }
114
115   return sws->surface_can_create(sws, format, base_level_size,
116                                  arraySize, numMipLevels, numSamples);
117}
118
119
120void
121svga_init_resource_functions(struct svga_context *svga)
122{
123   svga->pipe.buffer_map = svga_buffer_transfer_map;
124   svga->pipe.texture_map = svga_texture_transfer_map;
125   svga->pipe.transfer_flush_region = svga_buffer_transfer_flush_region;
126   svga->pipe.buffer_unmap = svga_buffer_transfer_unmap;
127   svga->pipe.texture_unmap = svga_texture_transfer_unmap;
128   svga->pipe.buffer_subdata = u_default_buffer_subdata;
129   svga->pipe.texture_subdata = u_default_texture_subdata;
130
131   if (svga_have_vgpu10(svga)) {
132      svga->pipe.generate_mipmap = svga_texture_generate_mipmap;
133   } else {
134      svga->pipe.generate_mipmap = NULL;
135   }
136}
137
138void
139svga_init_screen_resource_functions(struct svga_screen *is)
140{
141   is->screen.resource_create = svga_resource_create;
142   is->screen.resource_from_handle = svga_resource_from_handle;
143   is->screen.resource_get_handle = svga_resource_get_handle;
144   is->screen.resource_destroy = svga_resource_destroy;
145   is->screen.can_create_resource = svga_can_create_resource;
146}
147